Donald A Forrest (active 1951 - 1968)
Don Forrest is a wildlife artist noted for his illustration of birds. One of his most notable books is The Birdwatcher's Key which is an illustrated guide to 382 different species to be found in the British Isles and North-Western Europe.

Forrest's career may date back to at least as early as 1949 and the publication of a children's book entitled Binkie Beacon and His Friends.
Source: From biographical notes by Steve Holland